stevenrace

10 ms·

61.
by stevenrace 13y ago
If you are so inclined, you can build a similar (if not superior) system for under $75. A laser diode that makes a line, a 3.3V power supply, a stepper motor+driver, a CCD based webcam, and a copy of 'Davids Laser Scanner' [1] (or
62.
by stevenrace 13y ago
Most of the shiny 'gold' things seen in aerospace and motorsports is just vapor deposited Kapton/polymide. But there are applications where gold is indeed used - but it's unclear (in the literature I've read) when&#
63.
by stevenrace 13y ago
While I'm in favor of CNC'ing things on demand, it's doesn't scale very well. Machine time adds up - multiple tooling, batch processes like cleaning/finishing/painting,etc. 'The Market' seems to agre
64.
by stevenrace 13y ago
As I followed Amazon's buildout over the years, I couldn't help but wonder why FedEx is either overlooked in (or overlooking) this market. I worked in one of these facilites many years ago, asked, and got mostly shrugs. Their &#x2
65.
by stevenrace 13y ago
Note that 'encrypted storage' was only for paid accounts. It's unclear if these orders related to paying customers or not. While cited as an 'encrypted' email service, it apparently operated as a normal (web)mail s
66.
by stevenrace 13y ago
Paper: https://media.blackhat.com/us-13/US-13-Lau-Mactans-Injecting... Slides: https://media.blackhat.com/us-13/US-13-Lau-Mactans-Injecting...
67.
by stevenrace 13y ago
*Note the above links to an MP4. The 2013 Keynote is now on Youtube: https://www.youtube.com/watch?v=xvVIZ4OyGnQ&t=5m -- Alexander begins at 5 minutes in -- no slides visible in video -- 'heckling' @ 39minutes
68.
by stevenrace 13y ago
Perhaps it's worth noting that Boston Dynamics' earlier 'BigDog' robots were not bipedal and apparently built like a robotic pack mule. Bipedal examples may have uses as human analogs for misdirection in war, field test
69.
by stevenrace 13y ago
This lecture is part of Dr. Sapolsky's Stanford class on 'Behavioral Biology', which in itself is captivating.
70.
by stevenrace 13y ago
So 'OpenCV' + a webcam is supposed to replace Lidar? Props to this kid for being forward thinking, but this is a rather uninformed news article.
71.
by stevenrace 13y ago
>Lotus, who hasn't made a reliable car... ever? The US-spec Elise/Exiges were powered by a fairly mundane Toyota engine. Body panel costs aside, it's a cheap, reliable, unpractical, and great vehicle.
72.
by stevenrace 13y ago
Yup, I have a RepRap MendelMax v1.5. Enamored as a child by Lego, I broke all early problems down to things that could be solved/built with Lego. In order to build 'real stuff', I knew I needed to learn to weld aluminum and mill things. I
73.
by stevenrace 13y ago
Anything that lives outside of userspace. If one has root and patience - flash BIOS and wait for a coldboot. One can even get an IP stack to pull down new firmware between boots. The user sees a normal post screen and your hypervisor sees
74.
by stevenrace 14y ago
It's because they originally designed around a QFN packaged chip - later switching to a flip chip BGA (FCBGA) package. There was (and is) hardware on the market that could be adapted to work - but the folks who sell hardware based AES256 ap
75.
by stevenrace 14y ago
Appears to be a dup of: http://pastebin.com/LxmisuVJ There was a similar purported 'hack' [1] posted yesterday that was just recycled Pastebins in attempt to scam Btc. [1] http://pastebin.com/eti9hAHN
76.
by stevenrace 14y ago
But isn't even knowing some constraints about the money supply better than not knowing anything at all? For instance, the M3 supply of USD isn't even tracked by central banks (not since 2006).
77.
by stevenrace 14y ago
* How long can bitcoin last until it the satoshi (the minimum divisible unit of currency) is greater than a stick of gum? Let's use a hypothetical 'nfc->btc' enabled gumball dispenser. And keep with $0.25 market rate.
78.
by stevenrace 14y ago
At $5+/ea, that quickly adds up and difficult to parse in large numbers in duress. Whereas an IR camera is rather effective and perhaps cheaper.
79.
by stevenrace 14y ago
I would hope so, as the technological side of things are moving briskly forward. Yet, if I'm honest, I don't see things panning out as idealistic as I'd wish. 'It's complicated'. Unfortunately much of these advances cited above are academ
80.
by stevenrace 14y ago
Agreed. My startup builds big sensor networks - but the sensor side of things is where the real innovation is. Microfluidics, 'labs on a chip' in CMOS, infrared spectroscopy, etc... Sadly it's worlds different than using thermocouples or r
81.
by stevenrace 14y ago
It's worth noting Bitcoin's lead developer, Gavin Andresen, was invited to the CIA HQ in Langley, VA to a US Intelligence conference in June 2011. [1] So 'tacit consent' is quite likely indeed. [1] https://bitcointalk.org/index.php?topic=6
82.
by stevenrace 14y ago
'ASICminer' is the third company. During their first week of operation they paid out 3860 BTC (~$480,000) spread over 163,964 shares. [1] [1] https://bitcointalk.org/index.php?topic=99497.msg1568242#msg...
83.
by stevenrace 14y ago
I hope it's more than a simple line scanner given the price estimates. 'Structured Light' perhaps? I've been using a LCD projector + CCD webcam + Davids Laser Scanner [1] for sometime now to scan large objects (and a laser line scanner for
84.
by stevenrace 14y ago
Various RepRap extruders use peristaltic pumps to print chocolate, ceramics, etc. http://richrap.blogspot.com/2012/04/universal-paste-extruder...
85.
by stevenrace 14y ago
Exactly what I was looking for, thanks. It seems the 'Milspec' status is: MIL-STD-150A, dated 06 January 1998, is hereby cancelled without replacement. With as many multi-spectral instruments we have floating about, I wonder what oth
86.
by stevenrace 14y ago
Is this test pattern in use in other known research? Most of the test patterns I've encountered in using 'OpenCV' [1], 'laser scanning'[2], and 'structured light scanning' [3] have used equal sized geometric shapes. Not increasing in scale
87.
by stevenrace 14y ago
The prerequisite being a 'Maps' site with <weekly aerial updates. While relatively plausible today (a few styrofoam drones, camera arrays, pay fer acre for 'crowdsourcing', ...)[1], the legal woes are frightening. [1] 'relatively plaus
88.
by stevenrace 14y ago
The Goodthopter [1], an offshoot of Travis Goodspeed's 'GoodFET' project, allows CAN access for about $35 all in. It's basically a MSP430 + a CAN controller. Even 'simple' CAN protocols, like J1939 used in trucks/agri/marine, are purposel
89.
by stevenrace 14y ago
And perhaps more on point: http://www.amazon.com/What-Dormouse-Said-Counterculture-Pers...
90.
by stevenrace 14y ago
Ah, that's understandable. To make better use of the smaller screen real estate, you may wish to look into using a tiling window manager (dwm, xmonad, etc) coupled with a 'full screen' browser like Conkeror which nets another 100px vertical

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